828238877 has 2 divisors, whose sum is σ = 828238878. Its totient is φ = 828238876.

The previous prime is 828238847. The next prime is 828238889. The reversal of 828238877 is 778832828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470499481 + 357739396 = 21691^2 + 18914^2 .

It is a cyclic number.

It is not a de Polignac number, because 828238877 - 2⁶ = 828238813 is a prime.

It is a super-2 number, since 2×828238877² = 1371959274748442258, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828238847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414119438 + 414119439.

It is an arithmetic number, because the mean of its divisors is an integer number (414119439).

Almost surely, 2^828238877 is an apocalyptic number.

It is an amenable number.

828238877 is a deficient number, since it is larger than the sum of its proper divisors (1).

828238877 is an equidigital number, since it uses as much as digits as its factorization.

828238877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2408448, while the sum is 53.

The square root of 828238877 is about 28779.1396153533. The cubic root of 828238877 is about 939.1144810657.

The spelling of 828238877 in words is "eight hundred twenty-eight million, two hundred thirty-eight thousand, eight hundred seventy-seven".